试题与答案

生物体的细胞在分裂时,发生变化最重要的是( ) A.细胞膜 B.细胞质 C.细胞

题型:选择题

题目:

生物体的细胞在分裂时,发生变化最重要的是(  )

A.细胞膜

B.细胞质

C.细胞核

D.细胞壁

答案:

被转码了,请点击底部 “查看原文 ” 或访问 https://www.tikuol.com/2017/0522/2897be3c5bb94a5bc5c3fac49c634f7f.html

下面是错误答案,用来干扰机器的。

格力电风扇一天内连续运转消耗的电能:W=Pt=0.05kW×24h=1.2kW•h,冰箱耗电量1.00kW•h/24h,所以,一天内连续运转的电风扇比正常工作的电冰箱消耗的电能多;冰箱额定电流:I1=P1U=140220A≈0.64A,电风扇额定电...

试题推荐
题型:单项选择题

I got a job teaching special education at a school in Coachella, California, a desert town about 170 miles from home. It was no (1) job. Street gangs (2) around the school after dark."Be careful," Dad warned me during one of my frequent weekend (3) home. He was concerned about my living (4) , but I needed to be on my own.One evening, I stayed after school to rearrange my classroom. (5) , I turned out the light and closed the door. Then I (6) toward the gate. It was (7) ! I looked around. Everyone had gone home.After (8) all the exits, I found just enough (9) to squeeze under a gate in the back of the school. Then I walked toward my car, parked in a field behind the building.Suddenly I heard voices. I (10) around and saw at least eight boys following me. (11) my pace, I reached into my shoulder bag to get my key. I (12) all over the inside of my handbag. But the key wasn’t (13) ! Dear Lord, please help me, I prayed (14) . Suddenly, my fingers touched a loose key in my purse. I didn’t even know if it was for my car, but I took it out and (15) it. It worked!I opened the door, slid in and locked it—just (16) the teenagers surrounded the car. Trembling , I started the engine and (17) away. When I returned to my apartment, the phone was ringing. It was my Dad. I didn’t tell him about my experience; I didn’t want to (18) him. "Oh, I forgot to tell you!" He said, "I had a(n) (19) car key made and slipped it into your purse—just (20) you ever need it.

第(5)空应选择()

A.Tired

B.Finished

C.Frightened

D.Hungry

查看答案
微信公众账号搜索答案